Implementation and verification of discriminating algorithm of the optical disc using the side-beams

摘要

This paper presents a new method of discrimination between the normal disc and the rewritable one. The conventional method of disc discrimination, using Focus Error signal, has a heavy fluctuations. To achieve an accurate discrimination, in this paper, the sum of side-beam signal is used for that. A new approach is expected to improve the performance of the disc discrimination as well as to reduce the signal variation almost by 50%. Techniques in this paper are applicable to the all types of optical disc player, such as CD (compact disc), VCD (Video-CD) and DVD (digital versatile disc) and any other optical disc players.